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Finding the Third Proportional to 869,965 and 1,910,133

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Solution

The third proportional to 869,965 and 1,910,133 is: 4,193,971.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,965 : 1,910,133 = 1,910,133 : x
  2. Step 2: Convert to fraction form
    869,965/1,910,133 = 1,910,133/x
  3. Step 3: Cross multiply
    869,965x = 1,910,133 × 1,910,133
  4. Step 4: Simplify right side
    869,965x = 3,648,608,077,689
  5. Step 5: Solve for x
    x = 3,648,608,077,689/869,965
  6. Step 6: Final answer
    x = 4,193,971.11

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.